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JEE Main 202131 AugustMorning Shift

Exam: JEE Main
Year: 2021
Date: 31 August
Shift: Morning Shift
Subject: Chemistry
Chapter: p Block Elements (Group 15, 16, 17 & 18)

JEE Main 2021 · 31 August · Morning Shift · Chemistry · p Block Elements (Group 15, 16, 17 & 18)

Consider the sulphides HgS, PbS, CuS, Sb _ 2 S _ 3 , As _ 2 S _ 3...

Consider the sulphides

HgS, PbS, CuS, {Sb}_{2}{S}_{3}, {As}_{2}{S}_{3}

and

CdS .

Number of these sulphides soluble in

50 % {HNO}_{3}

is ___________ .

Correct answer

0

Step-by-step solution

CdS, PbS, {As}_{2}{S}_{3}

and

CuS,

are soluble in

50 % {HNO}_{3}

while

HgS

and

{Sb}_{2}{S}_{3}

are insoluble in

50 % {HNO}_{3}

but

HgS

soluble in aqua regia.

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